Uni-T UT30D Information The Uni-T UT30D is a pocket-sized digital multimeter that offers a wide range of measurement functions, including DC and AC voltage, DC current, resistance, capacitance, diode test, transistor hFE measurement, and continuity test. It also features a built-in square wave generator, which can be used to test the performance of electronic circuits. Introduction The UT30D is a versatile multimeter that is well-suited for a variety of applications, including electrical troubleshooting, circuit testing, and DIY projects. It is small and lightweight, making it easy to take with you on the go. The multimeter has a large, backlit display that makes it easy to read measurements in low-light conditions. It also features a number of user-friendly features, such as data hold, auto-ranging, and peak hold.